We’re making it easier than ever to find the products you need, whatever your goal.That’s why we’ve changed L Histidine to 100% L-Histidine Amino Acid - but don’t worry, we’ve definitely not changed the taste or the nutritionals, so it’s still your favourite…L-histidine is a naturally occurring amino acid that can be found in a variety of foods including meat, fish, and dairy products in small amounts. Getting it from your diet can be costly and time consuming — shopping, prepping, and cooking additional meals to hit your desired intake.